SLSM PWW50 Spa Filter 2-Pack — 1 1/2" SAE Screw-In Cartridge, Washable Dacron for Clearer Hot Tub Water

This two-pack of SLSM replacement cartridges fits spas that accept 1 1/2" SAE screw-in filters and swaps in for popular models such as Filbur FC-0359, PWW50P3, Waterway 817-0050 and others. Constructed with multilayer Dacron and a trilobal fabric structure, the PWW50 cartridge increases surface area to catch more debris while remaining easy to rinse and reuse. The set includes two identical filters so you can have a spare on hand for rotation and maintenance.

How does this filter improve water clarity in my spa?

The SLSM PWW50 captures a wide range of contaminants using a tightly woven, trilobal Dacron media that increases particle capture without a major pressure penalty. Its fabric structure holds hair and organic debris on the surface for easier rinsing rather than pushing particles deeper into the core.

• Multilayer Dacron media increases effective filtration area.
• Trilobal fibers trap more fine particles and sediment.
• Removes hair, leaves, sand, dust, and visible debris efficiently.

Will this filter fit my hot tub or spa?

The cartridge uses a standard 1 1/2" SAE screw-in connection and is made to replace several common OEM part numbers. Check your existing filter’s thread size and part number to confirm compatibility before ordering.

• Direct replacement for Filbur FC-0359, PWW50P3 and Unicel 6CH-940.
• Matches Waterway numbers including 817-0050 and similar models.
• 1 1/2" SAE screw-in thread for straightforward swap-in installation.

How long will the filter last and how do I maintain it?

With routine rinsing and occasional deep cleaning, the SLSM cartridge typically lasts 1–2 years depending on spa usage and water chemistry. The washable Dacron material is designed for repeated cleaning so you can maintain flow and performance without frequent replacements.

• Rinse weekly with a garden hose to remove surface debris.
• Soak monthly in a filter-cleaning solution for deeper cleaning.
• Rotate spare filter to extend overall service life and minimize downtime.

What’s included and what support does SLSM provide?

Each package contains two SLSM PWW50 replacement cartridges so you can keep one installed while cleaning the other. SLSM offers customer support if you need help confirming fit or troubleshooting installation, with contact information provided in the store listing.

• Two washable PWW50 (Unicel 6CH-940 equivalent) cartridges per package.
• Manufacturer support for fit questions and product assistance.
• Instructions for basic removal, rinsing and reinstallation included.

Who is this for: The SLSM PWW50 replacement set is aimed at spa and hot tub owners who want a cost-effective, washable filtration option that fits common screw-in housings. It’s a practical choice for regular homeowners, rental properties, and light-commercial spa operators who prefer reusable cartridges and straightforward maintenance to keep water clearer between deeper cleanings.